A. ND Mathematics Content Standards, Grade 5 - ND Curriculum ...

Parameter: A constant or a variable in a mathematical expression, which distinguishes various specific cases. For exampl e, in the equation y = mx + b, m and b are
parameters which specify the particular straight line represented by the equation. (from Mathematics Dictionary, edited by Glenn James and Robert James, 1960,
Princeton, New Jersey).
Partition. Divide up into pieces.
Percent rate of change. A rate of change expressed as a percent. Example: If a population grows from 50 to 55 in a year, it grows by 5/50 = 10% per y ear.
Probability distribution. The set of possible values of a random variable w ith a probability assig ned to each.
Properties of operations. See Table 3 in this Glossary.
Properties of equality. See Table 4 in this Glossary.
Properties of inequality. See Table 5 in this Glossary.
Properties of operations. See Table 3 in this Glossary.
Probability. A number betw een 0 and 1 used to quantify likelihood for processes that have uncertain outcomes (such as tossing a coin, selecting a person at random from
a group of people, tossing a ball at a target, or testing for a medical condition).
Probability model. A probability model is used to assign probabilities to outcomes of a chance process by examining the nature of the process. The set of all outcomes is
called the sample space, and their probabilities sum to 1. See also: uniform probability model.
Random variable. An assignment of a numerical value to each outcome in a sample space.
Rational expression. A quotient of tw o polynomials w ith a non-zero denominator.
Rational number. A number expressible in the form a/b or – a/b for some fraction a/b. The rational numbers include the integers.
Rectilinear figure. A polygon all angles of w hich are right angles.
Relative frequency. The ratio of the number of times that an event happens to the number of trials in which the event can happen or fail to happen. (Source: Mathematics
Dictionary, Glenn James and Robert James, 1960, Princeton, New Jersey)
Repeating decimal. The decimal form of a rational number. See also: terminating decimal.
Residual. The observed value minus the predicted value. It is the difference of the results obtained by observation, and by computation from a formula.
Note: Italicized text indicates North Dakota additions to the glossary.
North Dakota Mathematics Content Standards
Based on the Common Core State Standards
Glossary 19 June 2011